I am having trouble's with my kitchen spritzer... I have 2 of them, one for canola oil and one for olive oil. Every time I go to use them lately, I pump it up and spray and it sprays just a tad and then nothing... and this is happening to both of them. They are both less than a year old (probably 1 is about 6 months and the other less than that). I was trying to spray the mini muffin pan last night and I could get one well sprayed then I would have to re-pump. Any thoughts on this? They don't appear to have any build up on them, they aren't too full or underfull... I'm at a loss.. I use them for shows all the time, especially since a lot of my stones aren't quite seasoned enough yet and I have a show on Thursday... HELP!